Improvement in gultivators



W. F. QUINBY.

Steam-Plow,

atented Mar. 19, 1861.

' Wiizwwes.

ERS. FNOTO-LITNOGRAPHER wAsumsmm'u 0.

UNITED OFFICE.

w. F. owner, on STANTON, DELAWARE.

l M PROVEM ENT IN GU LTlV-ATO R-S.

Specification forming part-0E Letters Patent No. 3l,73S, dated'March 19,1861.

To all whom it may concern:

Be it known that I, W. F. QUINBY, of Stan.

ton, in thecounty of New Castle and State of Delaware, have invented anew and Improved Rotary Digging-and Pulverizing Machine; and I do herebydeclare that the following isa full,

clear, and exact description thereof, reference Similar letters ofreference indicate corre-.

sponding parts in both figures.

My invention relates to a novel machine for digging up the earth as deepas may be desired and then pulverizing the soil by cutting up the clodsand loosening the slices.

The nature of my invention consists in combining two or more cylindersor drlims of a suitable size, by cogs, belts, or chains, in such amanner that the revolution of the foremost cylinder shall give a greaterrelative speed to the rear cylinder or cylinders, and in arranging onthe peripheries of said cylinders a suitable number of spurs, spikes,knives, or cutting teeth of any desired description, said cylindersbeing so arranged within a framework which is mounted on a jointedcarriage frame that the driving-cylinder can be raised or depressed atpleasure and the teeth on this cylinder withdrawn entirely or partiallyfrom the ground, all as will be hereinafter described. A To enable thoseskilled in the art to make and use myinvention, I will proceed todescribe its construction and operation.

A represents a large driving-cylinder, which has a shaft, A, passingthrough its axis and projecting from each end a suitable distance.

Shaft A carries on its extreme ends two small spur-wheels, a a, and thebearings of this shaft A are in a frame consisting of three ellipticalboards, B B B, and transverse brace-bars bb 1).

Between the boards B B and keyed to the shaft A of the driving-cylinderA, is a large spur-wheel, O, the teeth of which engage with those of apinion, 0, on a short shaft, 0, which has its hearings in the boards BB, in rear of the cylinder-shaft A. Shaft 0 also carries a largespur-wheel, G the teeth of which engage with those-of apinion, d, whichis keyedto the shaft D'of a. small cylinder, D, arranged behindcylinderA. Shaft D has its hearings in the boardsB Bf B.

The two cylindersA and D are furnished wit-ha number of rows of teeth,lettered respectively e and f. The teeth care intended for turning thesod or soil, and the teeth or cutters f, succeeding them, out andpulverize the soil which has been turned up by theteeth 0. These teethmay be made of any suitable shape. found best adapted to the purpose forwhich they are intended, and they may he secured to the cylinders in anysuitable manner.

In rear of the small cylinder D and projecting out from bar I) are abetween which the teeth of cylinder D" work. The teeth 9 are used toclear the teeth or cutters f of cylinder D of roots, &c., which mayadhere to them. The teeth of cylinder A pass between the teeth ofcylinder D in the rotations of these cylinders, and the teeth will allclear themselves in this manner and keep in good operating condition.

E E are two longitudinal timbers, their rear ends forked, as represented2 and between these forked ends are i F, which roll on the ground whenthe digging and pulverizing apparatus is raised from the ground, as willbe hereinafter described.

having in Fig.

The front ends of these timbers E E have posts or arms G G projecting upfrom them, which carry a transverse roller, G, the ends of which havetheir hearings in the upper ends of said timbers. These longitudinaltimbers E E are pivoted at the points h h to the inclined arms of aframe, H. Frame H is mounted at its front end on a caster-wheel, I, andit is pivoted at its rear end, at t '5, (represented in Fig. 1,) to thesides of the boards B B. The inclined arms of frame H pass through theforked ends of the longitudinal timbers EE, and to these arms of frame Hthe longitudinal timbers E E are pivoted at! h, as before described. Thefront end of frame H rests on the projecting ends of a cross-piece whichconnects the two front ends of longitudinal timbers E E together whenthe cylinders are in operation.

J J are cords or chains, which are attached at their rear ends to therear ends of the lon gitudinal timbers E E, and which pass up and numberof teeth, g,

wheels over the pulleys m m, pivoted to side boards B B, thence to theroller G, to which the front ends of the cords J J are secured. Bywinding the cords on the roller G, a lever-arm, n, being secured to theroller for this purpose, the cords will elevate the front ends of thelongitudinal timbers E E and bring the racks p p on these timbers up tothe pinion spur-wheels a a on the ends of the shaft A of the cylinder A.The further rotation of the cylinder A will cause the wheels a a to runup the inclined racks until this cylinder and its teeth, together withthe rear cylinder, D, and itsteeth, are elevated free from the ground.The entire machine may then be rolled about from place to place on thethree wheels F, F, and L K is a frame,'the longitudinal arms of whichare pivoted to the axle A of cylinder A. This frame projects out infront of the cylinder A,

and the draft pole or chain is attached to it.

The cylinders A and D may be constructed of wood or iron, or both; andthey may be made to rotate in the same direction or in 0ppositedirections.

The teeth of the main driving-cylinder A may be composed of iron orsteel and flattened transversely, so as to dig up the earth in the mostsuitable manner.

Theteeth ofcylinderDmaybe made straight and radial with theaxis of theircylinders- They should have sharp cutting-edges for cutting readilythrough roots, 8m. Then behind the cylinder D the stationary teeth 9should be so arranged as to clear the cutting-teeth f,

and to keep them from clogging.

A suitable device will be applied to the roller Gr to prevent it fromturning back when the mountedin a carriage consisting of frame E E,

wheels F F, jointed frame H H, and front wheel, I, cords or chains J J,pulleys .m m, and

roller G, or their equivalents, all combined and operating substantiallyas and for the purposes herein set forth.

V W. F. QUINBY. Witnesses:

WM. T. MASSEY,

JoHN O. HIGHFIELD.

